Oil cup



Dec 2, 19% 2,518,955

L. C. DUTRO OIL CUP Filed Se 10, 1925 WITNESSES IN VEN TOR A74 LL-ZSLIECDUTEO A TTORNE YS Patented Beer 2, 12.,

LESLIE C i. z-

nnrno, or none nnaon, oanrroama.

OIL CUP.

Application filed September 10, 1923. Serial No. 662,626.

To all whom it may comem: I

Be it known that I, LnsmnC. ,Dmo', a citizen of the United States, and a resident of Long Beach, in the county of Los Angeles and State of California, have invented a new and Improved Oil Cup, of which the following is a full, clear, and exact'description.

This-invention relates to oilcups and has for an object to provide an improved con struction which is particularly adapted for oiling rapidly moving parts without wasting. the oil.

Another object in view is to provide an oil cup in whichthe oil is fed partly by a, siphon efiect whereby the cup may be used on crank pins and otherrapidly moving' members withoutthrowing or discharging more oil than desired.

In the accompanying drawing- Figure 1 is a longitudinal vertical section through an oil cup, disclosing an embodiment of the invent on, the same being taken on line 1-1 of Figure 2.

Figure 2 is a transverse sectional view through Figure 1, approximately on, line 2 -2.

Referring to the accompanying drawing by numerals, l indicates the body of a cup which may be of less or other material and which is provided with a cap 2; A. gasket 3 provides a tight joint between the body 1 and cap 2. A tubular member 4 extends through ca 2 and also through the bottom 5 into the tting fiwhich is screwed thereon. Suitable gaskets 7 and 8 areprovided for maintaining a tight jointv betweenthe respective parts just described; The tubular member 4. having a partition 13 forms combined well and feeding tube, said tube being locked in place by a suitable nut 9 and provided with a closing cap 10. The well or tube 4 is provided with a number of apertures 11 a? different points whereby the 'oil may readi y flow in or out. A feed or discharge pipe 14 is mounted in the fitting 6and extends an appreciable distance above the bottom ofthe tube 4 where it receives the lower end 15 of the looped tube or-siphon 16.

I The end 17 of the siphon 16 is arranged subwill thus be seen that all of the oil passing out through the pipe 14: must pass upwardly and t en downwardly to the end 15."

When the rarefacti'on inthe space 18, caused by the discharge of oil, becomestoo great,-

air will be sucked in through pipe 14 and through the siphon 16 for partially destroying this vacuum whereby'additional oil may be discharged.

This construction is particularly desirable 'on wrist pins and other parts of machinery where there is a rapid motion or a shaking or jerking motion. In an ordinary crank pin, if the tube 16 was omitted, theoil would feed too freely as a quantity would be forced out practically each time the cup changes its direction of mov'em nt. By providing the respective legs of the tube an equal length or substantially equal length,

the oil in these tubes will balance each other and thereby permit a proper flowing when the cup has been jarred or when theparts have been sufiiciently heated to expand the air in the space 18.

When the oil has been heated by reason of the heating of the bearing or for 'anyothen reason, the pressure in the space 18 will be ,raised and this pressure when assisted by the jarring action, will cause a properfeedmg of oil. Usually, the air in the main body or space 18 of the on extends as the parts become more or less heated and this overbalances the oil in the loo ed tube 16' whereby a certain quantity 0 crank pin bearing or other'bearing as required. 1

What I claim,-is:

1 An oil cup, comprising/a body for re ceiving a quantity of oil, a tubular member extending through said'body having a plurality of apertures therein at different oints, a partition member closing said tubu ar member below the last aperture, a dischar e pipe extending from said tubular mem er, a looped tube or siphon carried by said tubular member positioned with one end discharging into said pipe and with theother end positioned in said body exteriorly of the tubular member.

2. An oil cup, comprising a body for 12- ceiving a quantity of oil, said body having a cap'at one end for closing the same, a discharge tube mounted in the opposite end,

having a plurality of apertures therein atv oil is fed to the 'difierent points, a division member monntedl in said tubular member between the inner end of said discharge tube amt the nearest aperture in the tube to the discharge tube, 5 and a substantially U-sheped siphon extending through two of the apertures in said tubarter member with one end extending to Lemme near the bottom of said body and the other extending through said tubular member and into the discharge tube, the lower ends of tlie siphon being in substantially the same p ene, I

LESLIE CARL DUTJRU. 

